The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Patent No.:

US 6935481 B1

PDF
Full Text
Expired
Date of Patent:
Aug. 30, 2005

Filed:

May. 02, 2003
Applicant:

Thomas Schmidt, Landau, DE;

Inventor:

Thomas Schmidt, Landau, DE;

Assignee:

BorgWarner Inc., Auburn Hills, MI (US);

Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
F16D025/0638 ;
U.S. Cl.
CPC ...
Abstract

The invention relates to a clutch device with a pressure piston () for generating a pressure force for moving a clutch (), in which the pressure piston () is guided to slide in a housing () and the housing () and the pressure piston () enclose a pressure chamber (), which can be pressurized with a pressurizing agent () to generate the aforementioned pressure force and in which a balance piston () is present to generate a counterpressure force on the pressure piston (), which is held essentially immobile to the housing () when the clutch () is put into motion in the sliding direction of the pressure piston () and which, together with the housing () and the pressure piston (), encloses a balance chamber (), which can be pressurized with a counterpressurizing agent to generate a counterpressure force. A latching mechanism () is provided according to invention hold the balance piston () immobile as described above.


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